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#!/usr/bin/env python
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Outputs host CPU architecture in format recognized by gyp."""
from __future__ import print_function
import platform
import re
import sys
def HostArch():
"""Returns the host architecture with a predictable string."""
host_arch = platform.machine()
# Convert machine type to format recognized by gyp.
if re.match(r'i.86', host_arch) or host_arch == 'i86pc':
host_arch = 'ia32'
elif host_arch in ['x86_64', 'amd64']:
host_arch = 'x64'
elif host_arch.startswith('arm'):
host_arch = 'arm'
elif host_arch.startswith('aarch64'):
host_arch = 'arm64'
elif host_arch.startswith('mips64'):
host_arch = 'mips64'
elif host_arch.startswith('mips'):
host_arch = 'mips'
elif host_arch.startswith('ppc'):
host_arch = 'ppc'
elif host_arch.startswith('s390'):
host_arch = 's390'
# platform.machine is based on running kernel. It's possible to use 64-bit
# kernel with 32-bit userland, e.g. to give linker slightly more memory.
# Distinguish between different userland bitness by querying
# the python binary.
if host_arch == 'x64' and platform.architecture()[0] == '32bit':
host_arch = 'ia32'
if host_arch == 'arm64' and platform.architecture()[0] == '32bit':
host_arch = 'arm'
return host_arch
def DoMain(_):
"""Hook to be called from gyp without starting a separate python
interpreter."""
return HostArch()
if __name__ == '__main__':
print(DoMain([]))
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